61195-17-3Relevant articles and documents
PEG-SO3H as eco-friendly polymeric catalyst for the synthesis of 2,3-dihydroquinazolinones in water
Huang, Guoli,Liu, Bo,Teng, Mingyu,Chen, Yegao
, p. 453 - 458 (2016/10/18)
A facile, efficient, green, and environmentally benign method is described for the synthesis of 2,3-dihydroquinazolin-4(1H)-ones by direct cyclocondensation of 2-aminobenzamide with aldehydes or ketones in water using PEG-SO3H as an acidic catalyst under room temperature. This new method totally avoids the use of organic acids, toxic or expensive solvents and affording the corresponding product in good to excellent yields in this reaction.
Inclusion complex of Isatoic anhydride with β-cyclodextrin and supramolecular one-pot synthesis of 2, 3-dihydroquinazolin-4(1H)-ones in aqueous media
Patil, Dipak R.,Ingole, Pravin G.,Singh, Kripal,Dalal, Dipak S.
, p. 327 - 332 (2013/07/26)
The inclusion complex of isatoic anhydride with β-cyclodextrin was formed as a result of intermolecular interaction between isatoic anhydride with β-CD. The inclusion complex was confirmed by IR spectroscopy, X-ray diffraction and DSC studies. From application of complex, herein we have described a simple and efficient protocol for synthesis of 2, 3-dihydroquinazoline-4(1H)-one derivatives by one pot condensation of isatoic anhydride, ammonium acetate or amine and aldehyde using β-CD as a supramolecular catalyst in aqueous media.
An efficient synthesis of quinazoline derivatives with the aid of low-valent titanium reagent
Shi, Daqing,Shi, Chunling,Wang, Juxian,Rong, Liangce,Zhuang, Qiya,Wang, Xiangshan
, p. 173 - 183 (2007/10/03)
Quinazolin-4(3H)-ones, 1,2-dihydroquinazolin-4(3H)-ones, 3,4-dihydroquinazolines, imidazo[1,2-c]-quinazolines and 5,6-dihydroimidazo[1,2- c]quinazolines were synthesized by the novel reductive reaction of nitro group, N-H bond and ortho-ester, aldehydes o
